package leetcode.backtrace;

import leetcode.backtrace.common.BackTraceUtils;

import java.util.List;

class Solution89 {
    public List<Integer> grayCode(int n) {
        return BackTraceUtils.grayCode(n);
    }
}

public class leetcode89 {
    public static void main(String[] args) {
        Solution89 solution89 = new Solution89();
        System.out.println(solution89.grayCode(2));
    }
}
